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package org.glassfish.grizzly.monitoring.jmx;

import org.glassfish.gmbal.GmbalMBean;
import org.glassfish.gmbal.ManagedObjectManager;
import org.glassfish.gmbal.ManagedObjectManagerFactory;
import org.glassfish.grizzly.jmxbase.GrizzlyJmxManager;

/**
 * Grizzly JMX manager
 * 
 * @author Alexey Stashok
 */
public class DefaultJmxManager extends GrizzlyJmxManager {
    protected final ManagedObjectManager mom;

    public DefaultJmxManager() {
        this.mom = ManagedObjectManagerFactory.createStandalone("org.glassfish.grizzly");
        mom.stripPackagePrefix();
        mom.createRoot();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Object registerAtRoot(Object object) {
        final String jmxName = object instanceof JmxObject
                ? ((JmxObject) object).getJmxName()
                : identityToString(object);
        
        return registerAtRoot(object, jmxName);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public GmbalMBean registerAtRoot(Object object, String name) {
        final GmbalMBean bean = mom.registerAtRoot(object, name);
        if (object instanceof JmxObject) {
            ((JmxObject) object).onRegister(this, bean);
        }
        
        return bean;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Object register(Object parent, Object object) {
        final String jmxName = object instanceof JmxObject
                ? ((JmxObject) object).getJmxName()
                : identityToString(object);
        
        return register(parent, object, jmxName);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public GmbalMBean register(Object parent, Object object, String name) {
        final GmbalMBean bean = mom.register(parent, object, name);
        if (object instanceof JmxObject) {
            ((JmxObject) object).onRegister(this, bean);
        }

        return bean;
    }

    /**
     * {@inheritDoc}
     */

    @Override
    public void deregister(Object object) {
        mom.unregister(object);
        
        if (object instanceof JmxObject) {
            ((JmxObject) object).onDeregister(this);
        }
    }

    protected String identityToString(Object object) {
        return object.getClass().getName() + "@" +
                Integer.toHexString(System.identityHashCode(object));
    }
}
